[人工智能]vtk 显示opencv图像

#include "vtkAutoInit.h" 
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);

#include <vtkPNGReader.h>//PNG读取类
#include <vtkImageViewer.h>//显示2D图像类
#include <vtkRenderWindowInteractor.h>//交互器类
#include <opencv2/opencv.hpp>
#include <vtkImageData.h>
#include <vtkMapper.h>
#include <vtkSmartPointer.h>
#include <vtkImageImport.h>
#include <vtkCamera.h>
#include <vtkImageFlip.h>
#include <vtkRenderer.h>
#include <vtkImageActor.h>
using namespace cv;
void Ipl2VTK(cv::Mat& src, vtkImageData* dst)
{
	cv::flip(src, src, 0);
	vtkImageImport* importer = vtkImageImport::New();
	importer->SetOutput(dst);
	importer->SetDataSpacing(1, 1, 1);
	importer->SetDataOrigin(0, 0, 0);
	importer->SetWholeExtent(0, src.size().width - 1, 0, src.size().height - 1, 0, 0);
	importer->SetDataExtentToWholeExtent();
	importer->SetDataScalarTypeToUnsignedChar();
	importer->SetNumberOfScalarComponents(src.channels());
	importer->SetImportVoidPointer(src.data);
	importer->Update();
	return;
}
int main()
{
	//实例化一个对象pngReader
	vtkPNGReader* pngReader = vtkPNGReader::New();
	pngReader->SetFileName("E:/picture/lena.png");//读取图片
	Mat img = imread("E:/picture/lena.png");
	Mat gray;
	cvtColor(img, gray, COLOR_BGR2GRAY);
	imshow("1", img);
	cvtColor(img, img, COLOR_BGR2RGB);
	vtkSmartPointer<vtkImageData>imageData = vtkSmartPointer<vtkImageData>::New();
	Ipl2VTK(gray, imageData);

	//实例化一个对象Viewer
	vtkImageViewer* Viewer = vtkImageViewer::New();
	//Viewer->SetInputConnection(pngReader->GetOutputPort());//读取的图像数据输出给显示对象输入
	Viewer->SetInputData(imageData);
	Viewer->SetColorLevel(128);//设置窗位   
	Viewer->SetColorWindow(256);//设置窗宽 
	Viewer->Render();//显示图像
	waitKey();
	
	return 0;

}

#include <vtkAutoInit.h>      
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle)
#include<vtkSmartPointer.h>
#include<vtkImageCanvasSource2D.h>
#include<vtkImageData.h>
#include<vtkImageActor.h>
#include<vtkRenderer.h>
#include<vtkRenderWindow.h>
#include<vtkRenderWindowInteractor.h>
#include<vtkInteractorStyleImage.h>
#include<vtkPNGReader.h>
#include <vtkImageImport.h>
#include<opencv2/opencv.hpp>
using namespace cv;

void Mat2VTK(cv::Mat& src, vtkImageData* dst)
{
	cv::flip(src, src, 0);
	vtkImageImport* importer = vtkImageImport::New();
	importer->SetOutput(dst);
	importer->SetDataSpacing(1, 1, 1);
	importer->SetDataOrigin(0, 0, 0);
	importer->SetWholeExtent(0, src.size().width-1, 0, src.size().height-1, 0, 0);
	importer->SetDataExtentToWholeExtent();
	importer->SetDataScalarTypeToUnsignedChar();
	importer->SetNumberOfScalarComponents(src.channels());
	importer->SetImportVoidPointer(src.data);
	importer->Update();
	return;
}
int main()
{
	Mat img = imread("E:/picture/lena.png");
	Mat gray;
	cvtColor(img, gray, COLOR_BGR2GRAY);
	imshow("1", img);
	cvtColor(img, img, COLOR_BGR2RGB);
	vtkSmartPointer<vtkImageData>imageData = vtkSmartPointer<vtkImageData>::New();
	Mat2VTK(gray, imageData);
	
	vtkSmartPointer<vtkImageActor> actor =
		vtkSmartPointer<vtkImageActor>::New();
	//actor->SetInputData(canvas->GetOutput());
	actor->SetInputData(imageData);
	//定义视窗
	vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
	renderer->AddActor(actor);
	renderer->ResetCamera();
	renderer->SetBackground(0.0, 0.0, 0.0);
	
	//设置渲染窗口（搬上舞台）
	vtkSmartPointer<vtkRenderWindow> renderwindow =
		vtkSmartPointer<vtkRenderWindow>::New();
		renderwindow->AddRenderer(renderer);
	renderwindow->SetSize(512,512);
	renderwindow->SetBorders(1);
	renderwindow->SetFullScreen(0);
	renderwindow->SetLineSmoothing(0);
	renderwindow->Render();
	
	//设置窗口交互（演员-观众）
	vtkSmartPointer<vtkRenderWindowInteractor> rwi =
		vtkSmartPointer<vtkRenderWindowInteractor>::New();
	vtkSmartPointer<vtkInteractorStyleImage> style =
		vtkSmartPointer<vtkInteractorStyleImage>::New();
	
	rwi->SetInteractorStyle(style);
	rwi->SetRenderWindow(renderwindow);
	rwi->SetLightFollowCamera(1);
	rwi->Initialize();
	rwi->Start();

	return 0;
}

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